This Brief reviews contemporary research conducted in university and industry laboratories on
thermal management in electrochemical energy storage systems (capacitors and batteries) that
have been widely used as power sources in many practical applications such as automobiles
hybrid transport renewable energy installations power backup and electronic devices. Placing
a particular emphasis on supercapacitors the authors discuss how supercapacitors or ultra
capacitors are complementing and replacing batteries because of their faster power delivery
longer life cycle and higher coulombic efficiency while providing higher energy density than
conventional electrolytic capacitors. Recent advances in both macro- and micro capacitor
technologies are covered. The work facilitates systematic understanding of thermal transport in
such devices that can help develop better power management systems.
